The infamous Siege of Sydney Street forms the author’s background to this gripping novel. Luke Pagan, a young ambitious and Russian-speaking police officer is co-opted by the security services to observe Russian revolutionaries who are wanted by the Ochrana, the Tsar’s secret police. It is known they are involved in terrorism, but proof is needed. Robbery, murder, arson, torture and blackmail are rife and an East End jewellers has been ransacked and following a fire in Sydney Street the bodies of two terrorists are found. Pagan and his somewhat unorthodox partner, Joe Narrabone, investigate.
Luke Pagan is stationed in Portsmouth to keep an eye on Zeppelin flights. He discovers a British Naval officer doing exactly the same. Seemingly, there is a German spy ring operating with a view to directing the Zeppelins so they can keep an eye on the British fleet, although at this time its identity is unknown. Moreover, at the start of World War I, two ships are blown up and the head of counterintelligence orders Luke to carry out surveillance on the suspected British Officer. This in turn leads to the uncovering of an Irish terrorist plot bent on throwing off British rule by any means possible. The Irish have infiltrated the dockyard. It is clear there is an international conspiracy at work which turns out to be run by a German: Krieger. Luke finds himself in a race against time to identify all of the espionage and terrorist activities – or risk Britain losing the war.
The slaughter of World War I in the trenches continues unabated. Luke Pagan finds himself in the Intelligence Corps, investigating an illegal organisation controlled by a Belgian, which is encouraging British soldiers to desert and move across to the German side. What began as a trickle now threatens to develop into a flood in the fourth year of war. Pagan enters dangerous territory and faces disaster.